Ball-bearing.



vPIER-LUIGI FOCARDI.

BALL BEARING.

APPLICATION FILED .IULY 23| I9I5'.

mwm

A 2 SHEETS-SHEET I.

Paente Jan. 2, ISIN.

PIER-LUIGI FOCARDI.

BALL BEARING. l APPLICATION FILED LuLY 23,1915.

Patented Jan. 2, 191?.

2 SHEET SHEET 2.

Y n u@ fwf'o sans-rr essere.,

NEW YORK, ASSIGNOR T GARWOOD COMPANY,

er seamen; snr, scoaronn'rron or NEW Jnnsnv.

' BALL-BEARING.

Specification of Letters Patent.

llatentcd la n.. 2, lll l "Z.

Application filed July 33, 1915. Serial No. 41,437.

The main object oimy invention is to provide a simple durable and relatively expensive construction.

A special object is to provide a construc-v tion which will carry considerable Weight. @ne field in 'which the construction has n tried with great success is that of large capacity conveying trolleys. l

The invention is illustrated as applied to such a use., but-it will be understood that v it is not limited to any specialV field. ln the form shown and described herein, the axle is provided with two ball races, and the rotating member ing which furnishes the opposite walls for the series or balls. The outer wall of the inner race-Way in the axle is provided with a notch for the insertion of balls into said race-way. The parts may be held together by securing the axle to' a support. yA washer may be provided :for the outer end of the axle and a guard ring for the inner end of the axle. l

rlhe details of of assembling will construction and the method be understood hereinafter.

Figure l illustrates a ball bearing as applied to a conveyor trolley, one of the Wheels andpart oi? the bearing being shown in section. Fig. 2 is a larger sectional view show-` ing the a embled bearing. Fig. 3 is a similarl` vie showing the first-step in the assembling' oi; the bearings, the balls being inserted in the outer race-way. Fig. 4; is a similar view with the axle in place in the bushing. Fig. 5 is a similar view showing the insertion of the balls in the inner race- Way. Fig. 6 is a sectional vievv on the plane of the line 6-6 of Fig. 5. Fig. 7 shows the retaining ring.

rThe axle-10 or shaft member is provided With outer and inner bearing faces 11 and l2 facing toward each other forming racexvays. These race-Ways may be formed by cutting grooves in the axle so as to leave an enlarged part 13 of the axle Withthe oppositely inclined faces lli-15.

The bushing 16 surrounds the yaxle and is provided with oppos'tely inclined bearing through the passage is provided witha bushfaces 1?-18 for the series of balls 13 and Q0, respectively. This in effect, provifles outwardly opening race-ways in th opposite ends of the bushing. The bushing is secured in the hubr 2l or other part.

A .Washer 2Q may be provided at the outer end ofthe axle and held in place by a cotter pin 23 in a lhole 24s in the axle. The inner bearing face l2 on the axle 1s provided With a Anotch or slot 25 to permit the balls of the innerrow to be inserted. The split spring ring 26 is adapted to tit in a groove 27 of the axle to hold the balls in place after assembling. The bearingmay be lubricated 28 leading through the hub 2l and the'bushing 16.

As before mentioned, l have illustrated the invention as applied to' a conveyer trolley bearing.. The arm 30 constitutes the support for the axle l0 and the Wheel 31. lhat may be termed the inner end of `the axle is s'crew-threadedforthe nut 32 for holding the parts together. ln this case the Wheels are designed to run on the oppositely inclined flanges of an -beam 33 and the axles of the Wheels are accordingly inclined. lt will be noted that this bringsa peculiarl strain upon the bearing which is obliged to withstand longitudinal as Well This bearing ispe# culiarly adapted to 'withstand just such strain.

soV

To assemble the parts,- the bushing .16 is I '23 inserted. Thewasher assists in holding the hub in place on the bushing and also prevents the entrance of dirt anddust. The inner series of balls 20 is .then inserted through the notch 25, one at a time, as shown in Fig. Y5, and the ring 26 is snapped in place in the groove 27 to prevent the balls from coming ou The axle is then inserted in .the support 30 and secured by the nut 32. By reversing the operation, the parts may be readily disassembled. struction permits of a Wide spread between theA row of balls giving a'great stability lto the bearing, and it permits of a relatively small outside diameter for" the outerl bush-v ing for a given size or balls andv axle, as there is no inner bushing. relatively large This conaxle may be used for a given out-side dialneter of thel outer bushing. The space between the outer bushing and the axle may be used as a reservoir for a suitable lubricant such asvaseline,and also as adistributing chamber for oil squirted through the oil hole 28.

The particular advantages of theV invention reside in the simplicity and inexpensive construction which can be readily assembled or disassembled, and which is capable of supporting heavyloads under severe conditions of use.-

Although the form shown has been found practical and commercially desirable, it should be understood that the invention is not limited to details except by the scope of the claiins and the state of the art.

lvVhat I claim is: u l. In a construction of the character described, an axle threaded to provide 'a shank portion at one end and grooved at its op site end portion-to provide ball tracks facing toward each other, said axle having a shoulder thereon adjoining the ball track adjacent to the shank portion oit' the axle and cittthrough to thek ball track to provide an entrance notch for the balls, a wheel en- 'shank tracks on said axle,

and'provided wldi oppositely facing ball vtracks confronting the ball tracks on the axle, balls engaged between the confronting sets of ball tracks, a support receiving the shoulder thereon in rigid engagement with the support.

2." ln a trolley bearing of the Character scribed, the combination of an inclined axle having ball bearing tracks facing toward each other and arranged on different levels, said axle having ali-entrance notch extending through a part ofthelower track, a wheel having tracks facing opposite to the the tracks in said wheel both opening toward the outer faces of said wheel, two sets of balls inv said track-ways,

a supporting arm secured to the'lower end of said axle and covering said entrance notch and a Washer on the upper free end'of entrance to the lippe:l

said axle covering the setof balls, all whereby said bearing is sub- Jected to vertical. and horizontal pressure'.

Financier rosannr portion of the axle and covering the- 

